Charms in Ego Draconis only dropped from certain bosses, which is why they were rare. They're more common in DKS.
I tend to use more pure character builds to maximize power. DKS encourages this by having three separate power attributes that don't really mesh well together. You don't get a lot of benefit to weapon damage from pumping both Strength and Dexterity, as different weapons only take one into account.
